Name: _KEY_________________________
7th Grade Life Science
Date: ____________
Block: ____
Photosynthesis & Cellular Respiration Study Guide
1. What is the overall reaction (formula) for photosynthesis?
6CO2 + 6H2O + sunlight  C6H12O6 + 6O2
Carbon Dioxide and Water and sunlight yield Glucose and Oxygen
2. How does this compare to the overall reaction for cellular respiration?
Photosynthesis and Cellular Respiration are the reverse reactions of each other.
3. Where does the energy for photosynthesis come from?
The sun
4. What plant pigment is involved in photosynthesis?
Chlorophyll
5. How does your body get the energy it needs from the food you eat (what process allows
cellular energy to be made)? Cellular Respiration
6. In what organelle of a plant cell does photosynthesis take place?
Chloroplast
7. What are the products of photosynthesis?
Glucose and Oxygen
8. Write the equation for photosynthesis (CO2WS GO). Make sure you memorize it.
6CO2 + 6H2O + sunlight  C6H12O6 + 6O2
9. What is the overall reaction (formula) for cell respiration?
C6H12O6 + 6O2  6CO2 + 6H2O + ATP
10. Write the equation for cellular respiration. Make sure you memorize it (GO  CO2W and
Take Prisoners!).
C6H12O6 + 6O2  6CO2 + 6H2O + ATP or Glucose and oxygen yields carbon dioxide and
water and ATP
11. In what organelle of a cell does cellular respiration take place? Mitochondria
12. What are the reactants of cellular respiration? C6H12O6 + 6O2
Across
4. Part of the plant where photosynthesis generally
occurs. (chloroplast)
6. The product of photosynthesis. (glucose)
Down
1. A plant pigment that absorbs sunlight. (chlorophyll)
2. A reactant of photosynthesis (water)
3. The process by which plants use the energy from
sunlight to produce sugar. (photosynthesis)
5. Number of molecules of oxygen produced along with
one molecule of sugar. (six)
Photosynthesis and Respiration
After it is labeled, the diagram below will illustrate photosynthesis. Write each of the
following terms on the correct numbered line. Then answer the questions that follow.
1. Carbon Dioxide
5.
2. Oxygen 3. Glucose
4. Water
a. In photosynthesis, what substances enter the plant from the outside?
CO2 and H2O Carbon Dioxide and Water (and sunlight)
b. What substances are produced? C6H12O6 and O2
Glucose and Oxygen
6. The purpose of cellular respiration is to release the energy
from carbohydrates and other organic molecules stored during photosynthesis.
7. Write the formula that shows the release of energy by the mitochondria.
C6H12O6 + 6O2  6CO2 + 6H2O + ATP